Crown 8 vo. cloth , price 6s. 
Metamorphoses of Man and 
Animals. 
f 
Describing the changes which Mammals, Batrachians, Insects, 
Myriapods, Crustacea, Annelids, and Zoophytes undergo whilst in 
the egg; also the series of Metamorphoses which these beings are 
subject to in After-life. Alternate Generation, Parthenogenesis, and 
General Reproduction treated in extenso . With Notes, giving 
references to the works of Naturalists who have written upon the 
subject. By A. De Quatrefages. Translated by Henry Law- 
son, M.D. 
“We have already said enough to show that the essay which Dr. Lawson has 
introduced to us in an English garb is one which marks a new era in the history of 
Embryology, and which presents to both general and scientific readers information 
which has been hitherto confined to the realms of dusty periodicals of all languages. 
‘The Metamorphoses’ is a work which tends to elevate the science of Biology, and 
deserves the attention of all classes of cultivated readers .”—London Review. 
Complete in cloth , price 2s. 6d. 
Prof. Huxley’s Lectures “On the 
Origin of Species.” 
Chap. I.— Apparatus: Glass Slides used for Mounting — Thin Glass Covers —How 
to clean them—Cutting thin glass—Wooden Slides for opaque objects—Shadbolt’s 
Turntable for making thin cells—Camel’s-hair Pencils—Needles—Knives—Scissors— 
Glass Tubes—Forceps—Watch-glasses—Lamps—Various Cements—Canada Balsam 
—Asphaltum—Marine Glue—Gold Size — Liquid Glue —Black Japan — Electrical 
Cement—Gum-water—Sealing-wax Varnishes—Black Varnish. 
1. The Present Condition of Organic Nature.—2. The Past Con¬ 
dition of Organic Nature.—3. The Method by which the Causes 
of the Present and Past Conditions of Organic Nature are to be 
discovered. The Origination of Living Beings.—4. The Per¬ 
petuation of Living Beings, Hereditary Transmission, and Variation. 
—5. The Condition of Existence as affecting the Perpetuation of 
Living Beings.—6. A Critical Examination of the Position of Mr. 
Darwin’s Work “ On the Origin of Species,” in relation to the 
complete Theory of the Causes or the Phenomena of Organic 
Nature. 
“ Readers who cannot accept Mr. Darwin’s doctrines and conclusions will still be 
delighted with these lectures, since they embody so much curious information and so 
many important principles of biological science, expressed so clearly as to render the 
book, even to readers possessing scarcely any previous knowledge of the subject, not 
only intelligible but more interesting than any romance.”—Widow’s Register . 
Second Edition , with Appendix , Fcap. cloth y price 2s. 6d. 
The Tannin Process. 
By C. Russell. 
12 
